Life becomes a waiting room: hushed but unpeaceful, because you never know when you will be called.

NEWYORKER: Bringing Up Babies

You study hard to compete with classmates, but you also stay fluent in your own culture, because you never know when you might need it.

CNN: Commentary: Latino in the Ivy League

At the end of the day when a Premier League club comes calling for you, you have got to chance your arm, because you never know when you might get that chance.

BBC: No regrets for returning Ince

"I think people will probably be more cautious when they get out at different places, because you never know, " Morris, the hairdresser, said.

CNN: Determination trumps fear in wake of Alabama rampage